Basic operational concepts : A Typical
• Add LOCA, R0
• Add the operand at memory location LOCA to
the operand in a register R0 in the processor.
• Place the sum into register R0.
• The original contents of LOCA are preserved.
• The original contents of R0 is overwritten.
• Instruction is fetched from the memory into
the processor – the operand at LOCA is
fetched and added to the contents of R0 – the
resulting sum is stored in register R0.